MX

MAGNACHIP SEMICONDUCTOR Corp

Insider trading activity for MAGNACHIP SEMICONDUCTOR Corp, straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

+$1M

net buying

Bought(8 · 2 insiders): $1.8M
Sold(1 · 1 insiders): $840.7K

Past 6 months

+$1M

net buying

Bought(8 · 2 insiders): $1.8M
Sold(1 · 1 insiders): $840.7K

Past 12 months

+$1.2M

net buying

Bought(11 · 3 insiders): $2M
Sold(1 · 1 insiders): $840.7K

Transaction history

The 48 most recent Form 4 transactions.

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Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Nov 9	Amoruso Cristiano	Director	PBUY	300,000	$2.46	$739K	+10.1%	Open the original filing on SEC.gov
Nov 6	Amoruso Cristiano	Director	PBUY★	268,009	$2.36	$632.1K	+10.0%	Open the original filing on SEC.gov
Nov 6	Amoruso Cristiano	Director	SSELL	378,252	$2.22	$840.7K	-12.3%	Open the original filing on SEC.gov
Nov 6	Lee Chae	Chief Executive Officer	PBUY	20,000	$2.27	$45.4K	+4.6%	Open the original filing on SEC.gov
Nov 6	Lee Chae	Chief Executive Officer	PBUY	20,000	$2.15	$43K	+4.8%	Open the original filing on SEC.gov
Nov 6	Lee Chae	Chief Executive Officer	PBUY↓	30,000	$2.23	$67K	+7.7%	Open the original filing on SEC.gov
Sep 24	Lee Chae	Chief Executive Officer	PBUY	20,000	$3.22	$64.4K	+5.4%	Open the original filing on SEC.gov
Sep 23	Lee Chae	Chief Executive Officer	PBUY	30,000	$3.19	$95.6K	+8.9%	Open the original filing on SEC.gov
Sep 23	Lee Chae	Chief Executive Officer	PBUY★	50,000	$3.17	$158.5K	+17.3%	Open the original filing on SEC.gov
Aug 15	Martino Camillo	Director	AGRANT	6,764	—	—	+1.7%	Open the original filing on SEC.gov
Aug 1	Martino Camillo	Director	AGRANT	39,286	—	—	+10.8%	Open the original filing on SEC.gov
Aug 1	Nathan Gilbert E	Director	AGRANT	51,191	—	—	+23.9%	Open the original filing on SEC.gov
Aug 1	Chung Kyo-Hwa Liz	Director	AGRANT	48,810	—	—	+48.4%	Open the original filing on SEC.gov
Aug 1	Amoruso Cristiano	Director	AGRANT	46,429	—	—	+162.2%	Open the original filing on SEC.gov
Jul 1	Lee Chae	Chief Executive Officer	AGRANT◆	148,750	—	—	—	Open the original filing on SEC.gov
Jul 1	Lee Chae	Chief Executive Officer	AGRANT	288,750	—	—	—	Open the original filing on SEC.gov
Jun 1	Park Shinyoung	Chief Financial Officer	AGRANT	112,500	—	—	+52.2%	Open the original filing on SEC.gov
Jun 1	Lee Seunghoon	Chief of Manufacturing	AGRANT	30,000	—	—	+23.4%	Open the original filing on SEC.gov
Mar 16	Nathan Gilbert E	Director	PBUY	21,994	$2.87	$63.1K	+16.2%	Open the original filing on SEC.gov
Mar 13	Nathan Gilbert E	Director	PBUY	13,006	$2.79	$36.2K	+10.6%	Open the original filing on SEC.gov
Mar 12	Nathan Gilbert E	Director	PBUY★	25,000	$2.75	$68.7K	+25.5%	Open the original filing on SEC.gov
Feb 15	Nathan Gilbert E	Director	AGRANT	1,478	—	—	+0.7%	Open the original filing on SEC.gov
Feb 15	Chung Kyo-Hwa Liz	Director	AGRANT	2,946	—	—	+3.0%	Open the original filing on SEC.gov
Feb 15	Amoruso Cristiano	Director	AGRANT	28,628	—	—	—	Open the original filing on SEC.gov
Dec 31, 2025	Park Shin Young	See Remarks	FTAX	17,977	$2.55	$45.8K	-7.7%	Open the original filing on SEC.gov
Dec 31, 2025	Park Shin Young	See Remarks	FTAX	12,234	$2.55	$31.2K	-5.0%	Open the original filing on SEC.gov
Dec 31, 2025	Park Shin Young	See Remarks	FTAX	6,121	$2.55	$15.6K	-2.4%	Open the original filing on SEC.gov
Dec 31, 2025	Lee Seunghoon	See Remarks	FTAX	4,880	$2.55	$12.4K	-3.7%	Open the original filing on SEC.gov
Dec 31, 2025	Lee Seunghoon	See Remarks	FTAX	4,761	$2.55	$12.1K	-3.5%	Open the original filing on SEC.gov
Dec 31, 2025	Lee Seunghoon	See Remarks	FTAX	2,778	$2.55	$7.1K	-2.0%	Open the original filing on SEC.gov
Dec 31, 2025	Lee Seunghoon	See Remarks	FTAX	3,333	$2.55	$8.5K	-2.3%	Open the original filing on SEC.gov
Dec 31, 2025	Lee Seunghoon	See Remarks	AGRANT	7,000	$2.55	$17.9K	+5.1%	Open the original filing on SEC.gov
Nov 15, 2025	Nathan Gilbert E	Director	AGRANT	6,320	—	—	+3.1%	Open the original filing on SEC.gov
Nov 15, 2025	Chung Kyo-Hwa Liz	Director	AGRANT	3,160	—	—	+3.3%	Open the original filing on SEC.gov
Oct 1, 2025	Martino Camillo	See Remarks	AGRANT	105,484	—	—	+40.7%	Open the original filing on SEC.gov
Aug 25, 2025	Park Shin Young	See Remarks	PBUY	10,000	$2.87	$28.7K	+4.1%	Open the original filing on SEC.gov
Aug 22, 2025	Martino Camillo	See Remarks	PBUY	30,000	$2.84	$85.3K	+13.1%	Open the original filing on SEC.gov
Aug 15, 2025	Lee Seunghoon	See Remarks	AGRANT◆	15,375	—	—	—	Open the original filing on SEC.gov
Aug 15, 2025	Lee Seunghoon	See Remarks	AGRANT	30,750	—	—	+28.9%	Open the original filing on SEC.gov
Jul 1, 2025	Martino Camillo	Director	AGRANT	53,247	—	—	+30.3%	Open the original filing on SEC.gov
Jul 1, 2025	Nathan Gilbert E	Director	AGRANT	50,650	—	—	+32.5%	Open the original filing on SEC.gov
Jul 1, 2025	Lee Ilbok	Director	AGRANT	55,845	—	—	+25.5%	Open the original filing on SEC.gov
Jul 1, 2025	Chung Kyo-Hwa Liz	Director	AGRANT	45,455	—	—	+92.3%	Open the original filing on SEC.gov
Jun 15, 2025	Chung Kyo-Hwa Liz	Director	DTOISS	15,814	$3.84	$60.7K	-24.3%	Open the original filing on SEC.gov
Jun 1, 2025	Park Shin Young	See Remarks	AGRANT◆	55,104	—	—	—	Open the original filing on SEC.gov
Jun 1, 2025	Park Shin Young	See Remarks	AGRANT	110,210	—	—	+83.8%	Open the original filing on SEC.gov
Jun 1, 2025	Kim Young-Joon	See Remarks	AGRANT◆	164,269	—	—	—	Open the original filing on SEC.gov
Jun 1, 2025	Kim Young-Joon	See Remarks	AGRANT	164,269	—	—	+38.5%	Open the original filing on SEC.gov

PBUY$739K

Amoruso Cristiano · DirectorNov 9

300,000 sh @ $2.46 · +10.1% own

PBUY★$632.1K

Amoruso Cristiano · DirectorNov 6

268,009 sh @ $2.36 · +10.0% own

SSELL$840.7K

Amoruso Cristiano · DirectorNov 6

378,252 sh @ $2.22 · -12.3% own

PBUY$45.4K

Lee Chae · Chief Executive…Nov 6

20,000 sh @ $2.27 · +4.6% own

PBUY$43K

Lee Chae · Chief Executive…Nov 6

20,000 sh @ $2.15 · +4.8% own

PBUY↓$67K

Lee Chae · Chief Executive…Nov 6

30,000 sh @ $2.23 · +7.7% own

PBUY$64.4K

Lee Chae · Chief Executive…Sep 24

20,000 sh @ $3.22 · +5.4% own

PBUY$95.6K

Lee Chae · Chief Executive…Sep 23

30,000 sh @ $3.19 · +8.9% own

PBUY★$158.5K

Lee Chae · Chief Executive…Sep 23

50,000 sh @ $3.17 · +17.3% own

AGRANT—

Martino Camillo · DirectorAug 15

6,764 sh · +1.7% own

AGRANT—

Martino Camillo · DirectorAug 1

39,286 sh · +10.8% own

AGRANT—

Nathan Gilbert E · DirectorAug 1

51,191 sh · +23.9% own

AGRANT—

Chung Kyo-Hwa Liz · DirectorAug 1

48,810 sh · +48.4% own

AGRANT—

Amoruso Cristiano · DirectorAug 1

46,429 sh · +162.2% own

AGRANT◆—

Lee Chae · Chief Executive…Jul 1

148,750 sh

AGRANT—

Lee Chae · Chief Executive…Jul 1

288,750 sh

AGRANT—

Park Shinyoung · Chief Financial…Jun 1

112,500 sh · +52.2% own

AGRANT—

Lee Seunghoon · Chief of Manufactu…Jun 1

30,000 sh · +23.4% own

PBUY$63.1K

Nathan Gilbert E · DirectorMar 16

21,994 sh @ $2.87 · +16.2% own

PBUY$36.2K

Nathan Gilbert E · DirectorMar 13

13,006 sh @ $2.79 · +10.6% own

PBUY★$68.7K

Nathan Gilbert E · DirectorMar 12

25,000 sh @ $2.75 · +25.5% own

AGRANT—

Nathan Gilbert E · DirectorFeb 15

1,478 sh · +0.7% own

AGRANT—

Chung Kyo-Hwa Liz · DirectorFeb 15

2,946 sh · +3.0% own

AGRANT—

Amoruso Cristiano · DirectorFeb 15

28,628 sh

FTAX$45.8K

Park Shin Young · See RemarksDec 31, 2025

17,977 sh @ $2.55 · -7.7% own

FTAX$31.2K

Park Shin Young · See RemarksDec 31, 2025

12,234 sh @ $2.55 · -5.0% own

FTAX$15.6K

Park Shin Young · See RemarksDec 31, 2025

6,121 sh @ $2.55 · -2.4% own

FTAX$12.4K

Lee Seunghoon · See RemarksDec 31, 2025

4,880 sh @ $2.55 · -3.7% own

FTAX$12.1K

Lee Seunghoon · See RemarksDec 31, 2025

4,761 sh @ $2.55 · -3.5% own

FTAX$7.1K

Lee Seunghoon · See RemarksDec 31, 2025

2,778 sh @ $2.55 · -2.0% own

FTAX$8.5K

Lee Seunghoon · See RemarksDec 31, 2025

3,333 sh @ $2.55 · -2.3% own

AGRANT$17.9K

Lee Seunghoon · See RemarksDec 31, 2025

7,000 sh @ $2.55 · +5.1% own

AGRANT—

Nathan Gilbert E · DirectorNov 15, 2025

6,320 sh · +3.1% own

AGRANT—

Chung Kyo-Hwa Liz · DirectorNov 15, 2025

3,160 sh · +3.3% own

AGRANT—

Martino Camillo · See RemarksOct 1, 2025

105,484 sh · +40.7% own

PBUY$28.7K

Park Shin Young · See RemarksAug 25, 2025

10,000 sh @ $2.87 · +4.1% own

PBUY$85.3K

Martino Camillo · See RemarksAug 22, 2025

30,000 sh @ $2.84 · +13.1% own

AGRANT◆—

Lee Seunghoon · See RemarksAug 15, 2025

15,375 sh

AGRANT—

Lee Seunghoon · See RemarksAug 15, 2025

30,750 sh · +28.9% own

AGRANT—

Martino Camillo · DirectorJul 1, 2025

53,247 sh · +30.3% own

AGRANT—

Nathan Gilbert E · DirectorJul 1, 2025

50,650 sh · +32.5% own

AGRANT—

Lee Ilbok · DirectorJul 1, 2025

55,845 sh · +25.5% own

AGRANT—

Chung Kyo-Hwa Liz · DirectorJul 1, 2025

45,455 sh · +92.3% own

DTOISS$60.7K

Chung Kyo-Hwa Liz · DirectorJun 15, 2025

15,814 sh @ $3.84 · -24.3% own

AGRANT◆—

Park Shin Young · See RemarksJun 1, 2025

55,104 sh

AGRANT—

Park Shin Young · See RemarksJun 1, 2025

110,210 sh · +83.8% own

AGRANT◆—

Kim Young-Joon · See RemarksJun 1, 2025

164,269 sh

AGRANT—

Kim Young-Joon · See RemarksJun 1, 2025

164,269 sh · +38.5% own

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

1 of 30 filings we hold was filed after the two-business-day deadline. The furthest past the deadline was 91 business days late.

Form 4 filings made after the two-business-day deadline, with the transaction date, the filing date and the number of business days between them.
Traded	Filed	Insider	Past deadline	Largest line	Source
Aug 15, 2025	Jan 1	Lee SeunghoonSee Remarks	91days · about 4 months	$17.9K	Filing ↗

Lee SeunghoonSee Remarks

91days · about 4 months

Traded Aug 15, 2025 · filed Jan 1Filing ↗

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Insiders at this company

Everyone who has filed a Form 4 for this issuer.

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